scripts/docker/install/rootless/rootless_docker.sh

@@ -28,15 +28,29 @@ installDockerRootless()
         echo "---- $menu_number. Installing slirp4netns."
         echo ""
 
-        # slirp4netns — ensure it's installed via apt (idempotent: installs if missing,
-        # no-op if already present). We install from apt, so there's no point chasing the
-        # GitHub-latest release.
+        # slirp4netns update and install
+        if ! command -v slirp4netns &> /dev/null; then
+            isNotice "slirp4netns is not installed. Installing..."
             local result; result=$(runSystem apt-get install -y slirp4netns)
             checkSuccess "Installing slirp4netns"
+        else
+            isNotice "slirp4netns is already installed"
             # `slirp4netns --version` prints several lines (version, commit, libslirp,
-        # SLIRP_CONFIG_VERSION_MAX); read only the first line, field 3 is the number.
-        installed_version=$(slirp4netns --version 2>/dev/null | head -n1 | awk '{print $3}')
-        isSuccessful "slirp4netns ${installed_version:-installed} is ready"
+            # SLIRP_CONFIG_VERSION_MAX); read only the first line and take the version field.
+            installed_version=$(slirp4netns --version | head -n1 | awk '{print $3}')
+            latest_version=$(curl -s https://api.github.com/repos/rootless-containers/slirp4netns/releases/latest | grep tag_name | cut -d '"' -f 4)
+            latest_version=${latest_version#v}  # GitHub tags are vX.Y.Z; strip the v to compare
+            if [[ -n "$latest_version" && "$installed_version" != "$latest_version" ]]; then
+                isNotice "slirp4netns version $installed_version is outdated."
+                isNotice "Installing version $latest_version..."
+                local result; result=$(runSystem apt-get update)
+                checkSuccess "Updating apt packages"
+                local result; result=$(runSystem apt-get install -y slirp4netns)
+                checkSuccess "Installing slirp4netns"
+            else
+                isSuccessful "slirp4netns version $installed_version is up to date"
+            fi
+        fi
 
         if [[ $(lsb_release -rs) == "10" ]]; then
             ((menu_number++))